There used to be two version of this app – Fractile which was ad-supported, and Fractile Plus which was for sale. No more: The ad-supported version has been retired, and Fractile Plus is now available for free. Enjoy! I’d also like to extend my thanks to all the folks who have supported the app so far.

App updates: It seems the main feature requests right now are a bookmark / sharing system, and color cycling. The bookmarks will require some thought to get a nice implementation and may require some form of cloud-based storage / voting scenario. Color cycling is largely a UI issue (I’d prefer not to clutter up the interface with more buttons.) Also the app currently only uses a single worker thread to compute the fractals, it should be simple to spawn an extra one to gain an 80+% speed-up on the iPad 2.

Next version will let you change the color palette, although probably from a fixed list of entries rather than having some palette editor. If you have a color scheme you’re particularly fond of, please post screenshots / pics and I’ll try to include it.

Updates to both Fractile and Fractile Plus got submitted to Apple today. v2.0 includes the Julia set viewer with live preview, and the free version gets image saving too. Expect to see these in the app store in 10 days.

This will be the first paid-for, no-ad release. Features as described below: no Julia set yet, but high-res screenshots. If past performance is anything to go by it should appear end of the week or early next week.